dwyer



F. J. DWYER.

ROTARY VALVE.

APPLICATION FILED SEPT. I0. 1918.

Patented Nov. 4, 1919.

4 SHEETS-SHEET I.

F. 1. DWYER.

ROTARY VALVE.

APPLICATION FILED SEPT. 10. I918- 1,3QQ847. Patented Nov. 4, 1919.

F. J. DWYER.

ROTARY VALVE- APPLlCATlON n uan SEPT. 10. 1918.

Patented Nov. 4, 1919.

4 SHEETS-SHEET 3.

F. J. DWYER.

ROTARY VALVE.

APPLICATION FILED SEPT. 10. i918. 1,320,841, Patented Nov. 4, 1919.

4 SHEETS-SHEET 4.

rumors a. nwrnn, or nocnnsrea, NEW Yoax.

ROTARY VALVE.

To all whom it may concern:

Be it known that I, FRANGIs J. DWYER, a citizen of the United States, and a resident of Rochester, in the county of Monroe and State of New York, have invented new and useful Improvements inRotary Valves, of which the following is a specification.

This invention relates to valves and has particular reference to rot-aryvalves adapted to be used in connection with internal combustion engines of the reciprocating type although not restricted to this particular application.

An important object of the invention is to provide a valve of the above mentioned character so constructed as to be practically silent in its operation.

A further object of the invention is to i provide in a valve of the above mentioned character a means whereby the use of both water and air may be employed as a means for cooling the valve during its operation.

A further object of the invention is to provide in a valve of the above mentioned character a means whereby the maximum compression may be retained within the ex plosion chamber of an internal combustion engine with which it is particularly adapted to be used.

A further object of the invention is to provide in a valve of the above mentioned character a means whereby a single intake passage and a single exhaust passage may be emlployed in connection with a plurality of va ves.

A further object of the invention is to.

provide in a valve of the above mentioned character a means whereby perfect lubrication of the several working elements employed in connection therewith may be maintained. I I

A further object of the invention is to provide in a valve of the above mentioned character a means whereby the same may be easily assembled with respect to the van ous elements'bearing a close relation thereto which are employed in an internal combustion engineas a whole with which the valve is particularly adapted to be used.

A further object of the invention is to provide a valve of the above mentioned 1 character which is durable, cheap to manufacture, and reliable in operatlon.

Other objects and advantages of the in- Speolflcation of Letters Patent. I Patntedl Nov. d, 1919. Application filed September 10, 1918. Serial Iva 253,428.

vention will be apparent during the course' sociated therewith, the valve being shown in section,

Fig. 4 is a top plan view of a valve housing, which housing is adapted to be. used in connection with an internal combustion engine havin the'valve embodying my invention associated therewith,'

Fig. 5 is an end view of Fig. 4,

Fig. 6 is an opposite end view of Fig. 1,

Fig. 7 is a side elevation of an internal combustion engine having a plurality of valves embodying my invention employed therewith, certain elements thereof being shown in section and other elements thereo f being shown in elevation, and

Fig. 8 is a diagrammatic view showing the assumed positlon of a valve embodying my invention during the intake, power, and exhaust strokes of an internal combustion engine'with which the valve is particularly adapted to be used. I

In the drawings wherein for the purpose of illustration is shown a preferred form of my invention the numeral 10 indicates a crank case having a crank shaft 11, the

inder block 12 to provide a water space 14,

sectional Upon the cylinder block 12 there is arranged a housing 15 which housin is provided with a water space 16 WhlCh communicates with the water space 14 through passages 17 as clearly shown in Fig. 1. This housing is further provided with a plurality of screw threaded openings 18 adapted for the reception of spark plugs, not shown. The openin s 18 corresponding in number to the num er of cylinders of the'mternal combustion engine with which the valve embodying my invention is particularly adapted to be used. Within the housing 15 there is arranged a rotary) valve which valve is indicated as a whole y the numeral 19, the valve 19 being provided with a shaft 20 one end of which is mounted within a Journal 21 while the opposite end thereof is mounted within a ball bearin journa1 22 which journal is supported wit in a casing 23, the casing 23 being secured to the housing 15 by not shown, which are adapted to be passed through the openings 25 as clearly shown in Fig. 4. As a means for retalnin the housing 15 in position upon the cylin or block 12 there is provided a plurality of elongated bolts 26 which extend upwardly through sleeves 27 provided by one side of the housing 15 as clearly shown in Fig. 1,' the sleeves being preferably cast integral with the housing 15 in order to further secure the housing 15 in position. Upon the cylinder block 12 there is provided a plurality of bolts 28 which are passed through a flange 29 carried by a side of the housing 15 opposite the side of the housing upon which the sleeves 27 are disposed. By securing the housing 15 firmly to the engine block or cylinder block 12 as above described and then further securing the casing 23 tothe housing I am enabled to thus retain all of the actuated elements arranged within the housing 15 and the casing 23 in a correct relation with respect to the cylinder block 12.

The valve 19 is provided with a by-pass 30 which is semi-circular in cross-section as clearly shown in Fig. 3. By forming the by-pass 30 semi-circular, as clearly shown, I

am enabled to utilize the portions 31 of the valve 19 which lie adjacent to the by-pass 30 in order to maintain a gas tight jointure between the interior of the casing 23 and the compression chamber of the cylinder as will be readily understood when considering Fig. 3. I

In order to provide a means for supplying air to the valve 19 for the purpose of insuring a perfect cooling of the same I prefer to construct the valve 19 to provide an opening 32 therein which opening communicates directly with the atmosphere through arcuate shape ports 33 provided by the housing 15 when the valve assumes the position clearly shown in Fig. 3. Thus it will be understood that upon each revolu-- tion of the valve 19 should the air trapped within the opening 32 become heated to a higher temperature than the surrounding air the heated air being lighter than the means of tap screws or the like,-

surrounding cooler air will ex and and pass from the opening '32 throng the port 33. allowing coolerair to enter therein and replace the heated air thus expelled from the valve 19 through the ort 33.

' In order to provi e an adequate sealing means and for the valve 19 I prefer to employ a steel liner 34 which liner is provided With a. port 35 which is arranged 1n alinement with the intake ort 36 of the cylinder, as clearly shownin fig. 1.

The housing 15 is provided with a plurality of intake. ports 37 which are arranged between ports of the valve 19 as will be readily understood when considering Figs; 1 and 4, one passage being utilized to supply gaseous fuel mixture to two adjacent cylinders. The housing 15 is further provided with an exhaust passage 38 which is arranged centrally with respect to the housing 15, this exhaust passage being utilized to exel the exhaustgases from the two centrally ocated cylinders as will be readily understood when considering Figs. 1 and 4.

As a means for directing exhaust gases from the endjcylinders there is provided a pair of exhaust passages 39. These exhaust passages are identical with each other and their function may be readil understood when considerin Figs. 1 and It is to be understood that in order to produce a four cycle engine with which the valve embodymg my invention is particularly adapted to be used the valves employed are to be geared two to one with respect to the crank shaft and as a means for producing this particular ratio I provide a plurality of worm gears 40 which are mounted upon the shafts 20 of the valves 19. These gears in turn mesh with a series of worm gears one of which is shown in Fig. 7 and indicated by the, numeral 41, the worm gears 41 being carried by an elongated shaft 42 having its ends journaled within journal boxes 43 carried at the ends of the casing 23. I preferably journal the ends of the shaft 42 within ball bearings as shown at 44. Upon one end of the shaft 42 there is mounted a worm gear 45 which in turn is driven by the shaft 46 having suitable connection with the crank shaft 11 to produce the desired ratio. It will be further understood that each pair of valves rotate in opposite directions thereby making possible the use of one intake passage 37 for two valves.

In order to supply a suitable cooling agent to the water space 16 I-have provided a plurality of openings 47 which openings may be connected either directlyo'r indirectly with the water space 14 or with an external source of supply, not shown.

In use the operation of the device is as follows. As above stated the valves of each pair of cylinders thereof are rotated in oppositedirections, the by-passes of which fuel mixture into the cylinders and to of gaseous fuel mixture into the cylinder..

alternately permit the expulsion of exploded gases from the cylinders.

In considering the diagram shoWnin Fig. 8' the bypass 30 of. the valve 19 is diagrammatically shown by the line 48 as permitting the entrance When the by-pass 30 has assumed the positionshown by the dotted line 49 the working stroke of the engine is being executed, the exhaust gases being expelled from the cylinder whenthe by -pass has assumed the position illustrated by the dotted, line 50, thus four complete strokes will have been accomplished 'uponone complete revolution of the valve.

While I have shown the device embodying my invention as being employed in connection with four cylinders I wish it understood that I do not limit the application to any given number of cylinders, it being equally applicable to any number of cylinders de: sired. I wish it further understood that the form of my invention herewith shown and described is to be taken as a preferred exv ample of the same, and that various changes in the shape, size, andarrangement of parts may be resorted to without departing from the spirit of the invention or the scope of I the subjoined claims.

Having thus described my invention, what I claim as new and desire to Secure and protect by Letters Patent vof the United States, is: 1

l. The combination with an internal combustion engine having a plurality of cylin- Iders,-said cylinders being provided with a water jacket and a plu ra ity of intake passages, of a housing having communication with said water jacket, a plurality of valves journaled 'within said housing, said valves being arranged in pairs and having their axis arranged perpendicularly to a vertical ,said cylinders, said housing plane passed through the axis of all of said cylinders, means for rotating the valves of each pair in opposite directions whereby a Y rotating the valves of each pair in opposite directions whereby a single intake passage may be utilized for directing gaseous fuel mixture into adjacent cylinders, said exhaust passages being utilized'to direct exhaust gases from adjacent cylinders, and means for intermittently communicating the interior of said valves with the atmosphere. 3. The combination with an internal comsaid water a bustion engine having a plurality of cyl- V inders, a detachable housing disposed upon being provided with ports, a plurality of rotatable valves arranged within saidfhousing, said valves being provided with openings adapted to registerwith and receive air through said ports, a casing secured to said housing and spaced therefrom to provide a chamber,

worm gears secured to said valves and arranged within said chamber, a worm meshing with each of said worm gears, means for rotating said worm whereby rotat1on 1s 1m parted to said valves, andmeans for ln ecting water into said detachable housing, said means being located directly above each of said rotary valves.

FRANCIS J DWYER. 

